On Sat, Jul 24, 2021 at 10:24:28AM -0000, Stuart Henderson wrote: > On 2021-07-23, Christopher Sean Hilton <[email protected]> wrote: > > On Fri, Jul 23, 2021 at 11:19:35AM -0400, Chris Hilton wrote:
[ ...snip... ] > > > > Answering my own question, it looks like the Xeon D is intels newest > > low power stuff. I'll look there. > > Not particularly new, Xeon D 1500 series are from 2016 or so and still > seem to be the range to go for if you care about good power use. Look > at supermicro X10SDV (Xeon D 1500 series) or M11SDV (AMD EPYC). Sadly > the M11SDV only has copper nics, X10SDV have decent ix(4) SFP+ plus > some copper. (X10 is an older supermicro range, I'm not sure what the > availability is like). > > supermicro, if you're reading, an EPYC board with a couple of SFP28 > onboard would be nice... > > Sample dmesg from one of the X10SDV models - em and ix are onboard, > ixl is a card: > > OpenBSD 6.8-current (GENERIC.MP) #220: Thu Dec 10 20:03:29 MST 2020 > [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP [ ...snip ] Thanks to everyone for the answers that they provided. Just a late followup here. I thought through my testing rig and realized that it was slightly flawed. I was originally using one of the Atoms as an iperf endpoint. That obviously messed up the tests. I retested using a pair of machine which I know can saturate a 1Gb/s connection. My new test rig is a pair of MacBook Pro's with Thunderbolt Ethernet adapters: * With just a GigE switch connecting the test machines, I measured a transfer rate of 942 Mb/s. The test program was iperf3. * With OpenBSD 6.8 running a bridged configuration on an Intel Atom D525 with internal and external "em" nics, and filtering using pf. I measured a rate of 775 ~ 850 Mb/s. Again, the test program was iperf3. Testing the routed configuration on my Atom C2758 is a little more difficult. I'll set that up next week. I expect that the transfer rate through that combination will be a little lower since routing is more difficult than bridging. I am currently shopping Intel Xeon-D hardware. I plan to eventually replace the D525 bridge with the C2758 running in a bridged configuration and use new Xeon-D hardware for the router. -- Chris -- -- Chris __o "All I was trying to do was get home from work." _`\<,_ -Rosa Parks ___(*)/_(*)_____________________________________________________________ Christopher Sean Hilton [chris/at/vindaloo/dot/com]
